| 1 |
/* -*- c-basic-offset: 8 -*- |
| 2 |
rdesktop: A Remote Desktop Protocol client. |
| 3 |
User interface services - X keyboard mapping |
| 4 |
|
| 5 |
Copyright (C) Matthew Chapman 1999-2005 |
| 6 |
Copyright (C) Peter Astrand <peter@cendio.se> 2003 |
| 7 |
|
| 8 |
This program is free software; you can redistribute it and/or modify |
| 9 |
it under the terms of the GNU General Public License as published by |
| 10 |
the Free Software Foundation; either version 2 of the License, or |
| 11 |
(at your option) any later version. |
| 12 |
|
| 13 |
This program is distributed in the hope that it will be useful, |
| 14 |
but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 |
GNU General Public License for more details. |
| 17 |
|
| 18 |
You should have received a copy of the GNU General Public License |
| 19 |
along with this program; if not, write to the Free Software |
| 20 |
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 21 |
*/ |
| 22 |
|
| 23 |
#ifdef RDP2VNC |
| 24 |
#include "vnc/x11stubs.h" |
| 25 |
#else |
| 26 |
#include <X11/Xlib.h> |
| 27 |
#include <X11/keysym.h> |
| 28 |
#endif |
| 29 |
|
| 30 |
#include <ctype.h> |
| 31 |
#include <limits.h> |
| 32 |
#include <time.h> |
| 33 |
#include <string.h> |
| 34 |
#include "rdesktop.h" |
| 35 |
#include "scancodes.h" |
| 36 |
|
| 37 |
#define KEYMAP_SIZE 0xffff+1 |
| 38 |
#define KEYMAP_MASK 0xffff |
| 39 |
#define KEYMAP_MAX_LINE_LENGTH 80 |
| 40 |
|
| 41 |
extern Display *g_display; |
| 42 |
extern Window g_wnd; |
| 43 |
extern char keymapname[16]; |
| 44 |
extern int g_keylayout; |
| 45 |
extern int g_win_button_size; |
| 46 |
extern BOOL g_enable_compose; |
| 47 |
extern BOOL g_use_rdp5; |
| 48 |
extern BOOL g_numlock_sync; |
| 49 |
|
| 50 |
static BOOL keymap_loaded; |
| 51 |
static key_translation *keymap[KEYMAP_SIZE]; |
| 52 |
static int min_keycode; |
| 53 |
static uint16 remote_modifier_state = 0; |
| 54 |
static uint16 saved_remote_modifier_state = 0; |
| 55 |
|
| 56 |
static void update_modifier_state(uint8 scancode, BOOL pressed); |
| 57 |
|
| 58 |
/* Free key_translation structure, including linked list */ |
| 59 |
static void |
| 60 |
free_key_translation(key_translation * ptr) |
| 61 |
{ |
| 62 |
key_translation *next; |
| 63 |
|
| 64 |
while (ptr) |
| 65 |
{ |
| 66 |
next = ptr->next; |
| 67 |
xfree(ptr); |
| 68 |
ptr = next; |
| 69 |
} |
| 70 |
} |
| 71 |
|
| 72 |
static void |
| 73 |
add_to_keymap(char *keyname, uint8 scancode, uint16 modifiers, char *mapname) |
| 74 |
{ |
| 75 |
KeySym keysym; |
| 76 |
key_translation *tr; |
| 77 |
|
| 78 |
keysym = XStringToKeysym(keyname); |
| 79 |
if (keysym == NoSymbol) |
| 80 |
{ |
| 81 |
DEBUG_KBD(("Bad keysym \"%s\" in keymap %s (ignoring)\n", keyname, mapname)); |
| 82 |
return; |
| 83 |
} |
| 84 |
|
| 85 |
DEBUG_KBD(("Adding translation, keysym=0x%x, scancode=0x%x, " |
| 86 |
"modifiers=0x%x\n", (unsigned int) keysym, scancode, modifiers)); |
| 87 |
|
| 88 |
tr = (key_translation *) xmalloc(sizeof(key_translation)); |
| 89 |
memset(tr, 0, sizeof(key_translation)); |
| 90 |
tr->scancode = scancode; |
| 91 |
tr->modifiers = modifiers; |
| 92 |
free_key_translation(keymap[keysym & KEYMAP_MASK]); |
| 93 |
keymap[keysym & KEYMAP_MASK] = tr; |
| 94 |
|
| 95 |
return; |
| 96 |
} |
| 97 |
|
| 98 |
static void |
| 99 |
add_sequence(char *rest, char *mapname) |
| 100 |
{ |
| 101 |
KeySym keysym; |
| 102 |
key_translation *tr, **prev_next; |
| 103 |
size_t chars; |
| 104 |
char keyname[KEYMAP_MAX_LINE_LENGTH]; |
| 105 |
|
| 106 |
/* Skip over whitespace after the sequence keyword */ |
| 107 |
chars = strspn(rest, " \t"); |
| 108 |
rest += chars; |
| 109 |
|
| 110 |
/* Fetch the keysym name */ |
| 111 |
chars = strcspn(rest, " \t\0"); |
| 112 |
STRNCPY(keyname, rest, chars + 1); |
| 113 |
rest += chars; |
| 114 |
|
| 115 |
keysym = XStringToKeysym(keyname); |
| 116 |
if (keysym == NoSymbol) |
| 117 |
{ |
| 118 |
DEBUG_KBD(("Bad keysym \"%s\" in keymap %s (ignoring line)\n", keyname, mapname)); |
| 119 |
return; |
| 120 |
} |
| 121 |
|
| 122 |
|
| 123 |
DEBUG_KBD(("Adding sequence for keysym (0x%lx, %s) -> ", keysym, keyname)); |
| 124 |
|
| 125 |
free_key_translation(keymap[keysym & KEYMAP_MASK]); |
| 126 |
prev_next = &keymap[keysym & KEYMAP_MASK]; |
| 127 |
|
| 128 |
while (*rest) |
| 129 |
{ |
| 130 |
/* Skip whitespace */ |
| 131 |
chars = strspn(rest, " \t"); |
| 132 |
rest += chars; |
| 133 |
|
| 134 |
/* Fetch the keysym name */ |
| 135 |
chars = strcspn(rest, " \t\0"); |
| 136 |
STRNCPY(keyname, rest, chars + 1); |
| 137 |
rest += chars; |
| 138 |
|
| 139 |
keysym = XStringToKeysym(keyname); |
| 140 |
if (keysym == NoSymbol) |
| 141 |
{ |
| 142 |
DEBUG_KBD(("Bad keysym \"%s\" in keymap %s (ignoring line)\n", keyname, |
| 143 |
mapname)); |
| 144 |
return; |
| 145 |
} |
| 146 |
|
| 147 |
/* Allocate space for key_translation structure */ |
| 148 |
tr = (key_translation *) xmalloc(sizeof(key_translation)); |
| 149 |
memset(tr, 0, sizeof(key_translation)); |
| 150 |
*prev_next = tr; |
| 151 |
prev_next = &tr->next; |
| 152 |
tr->seq_keysym = keysym; |
| 153 |
|
| 154 |
DEBUG_KBD(("0x%x, ", (unsigned int) keysym)); |
| 155 |
} |
| 156 |
DEBUG_KBD(("\n")); |
| 157 |
} |
| 158 |
|
| 159 |
void |
| 160 |
xkeymap_from_locale(const char *locale) |
| 161 |
{ |
| 162 |
char *str, *ptr; |
| 163 |
FILE *fp; |
| 164 |
|
| 165 |
/* Create a working copy */ |
| 166 |
str = strdup(locale); |
| 167 |
if (str == NULL) |
| 168 |
{ |
| 169 |
perror("strdup"); |
| 170 |
exit(1); |
| 171 |
} |
| 172 |
|
| 173 |
/* Truncate at dot and at */ |
| 174 |
ptr = strrchr(str, '.'); |
| 175 |
if (ptr) |
| 176 |
*ptr = '\0'; |
| 177 |
ptr = strrchr(str, '@'); |
| 178 |
if (ptr) |
| 179 |
*ptr = '\0'; |
| 180 |
|
| 181 |
/* Replace _ with - */ |
| 182 |
ptr = strrchr(str, '_'); |
| 183 |
if (ptr) |
| 184 |
*ptr = '-'; |
| 185 |
|
| 186 |
/* Convert to lowercase */ |
| 187 |
ptr = str; |
| 188 |
while (*ptr) |
| 189 |
{ |
| 190 |
*ptr = tolower((int) *ptr); |
| 191 |
ptr++; |
| 192 |
} |
| 193 |
|
| 194 |
/* Try to open this keymap (da-dk) */ |
| 195 |
fp = xkeymap_open(str); |
| 196 |
if (fp == NULL) |
| 197 |
{ |
| 198 |
/* Truncate at dash */ |
| 199 |
ptr = strrchr(str, '-'); |
| 200 |
if (ptr) |
| 201 |
*ptr = '\0'; |
| 202 |
|
| 203 |
/* Try the short name (da) */ |
| 204 |
fp = xkeymap_open(str); |
| 205 |
} |
| 206 |
|
| 207 |
if (fp) |
| 208 |
{ |
| 209 |
fclose(fp); |
| 210 |
STRNCPY(keymapname, str, sizeof(keymapname)); |
| 211 |
fprintf(stderr, "Autoselected keyboard map %s.\n", keymapname); |
| 212 |
} |
| 213 |
} |
| 214 |
|
| 215 |
|
| 216 |
/* Joins two path components. The result should be freed with |
| 217 |
xfree(). */ |
| 218 |
static char * |
| 219 |
pathjoin(const char *a, const char *b) |
| 220 |
{ |
| 221 |
char *result; |
| 222 |
result = xmalloc(PATH_MAX * 2 + 1); |
| 223 |
|
| 224 |
if (b[0] == '/') |
| 225 |
{ |
| 226 |
strncpy(result, b, PATH_MAX); |
| 227 |
} |
| 228 |
else |
| 229 |
{ |
| 230 |
strncpy(result, a, PATH_MAX); |
| 231 |
strcat(result, "/"); |
| 232 |
strncat(result, b, PATH_MAX); |
| 233 |
} |
| 234 |
return result; |
| 235 |
} |
| 236 |
|
| 237 |
/* Try to open a keymap with fopen() */ |
| 238 |
FILE * |
| 239 |
xkeymap_open(const char *filename) |
| 240 |
{ |
| 241 |
char *path1, *path2; |
| 242 |
char *home; |
| 243 |
FILE *fp; |
| 244 |
|
| 245 |
/* Try ~/.rdesktop/keymaps */ |
| 246 |
home = getenv("HOME"); |
| 247 |
if (home) |
| 248 |
{ |
| 249 |
path1 = pathjoin(home, ".rdesktop/keymaps"); |
| 250 |
path2 = pathjoin(path1, filename); |
| 251 |
xfree(path1); |
| 252 |
fp = fopen(path2, "r"); |
| 253 |
xfree(path2); |
| 254 |
if (fp) |
| 255 |
return fp; |
| 256 |
} |
| 257 |
|
| 258 |
/* Try KEYMAP_PATH */ |
| 259 |
path1 = pathjoin(KEYMAP_PATH, filename); |
| 260 |
fp = fopen(path1, "r"); |
| 261 |
xfree(path1); |
| 262 |
if (fp) |
| 263 |
return fp; |
| 264 |
|
| 265 |
/* Try current directory, in case we are running from the source |
| 266 |
tree */ |
| 267 |
path1 = pathjoin("keymaps", filename); |
| 268 |
fp = fopen(path1, "r"); |
| 269 |
xfree(path1); |
| 270 |
if (fp) |
| 271 |
return fp; |
| 272 |
|
| 273 |
return NULL; |
| 274 |
} |
| 275 |
|
| 276 |
static BOOL |
| 277 |
xkeymap_read(char *mapname) |
| 278 |
{ |
| 279 |
FILE *fp; |
| 280 |
char line[KEYMAP_MAX_LINE_LENGTH]; |
| 281 |
unsigned int line_num = 0; |
| 282 |
unsigned int line_length = 0; |
| 283 |
char *keyname, *p; |
| 284 |
char *line_rest; |
| 285 |
uint8 scancode; |
| 286 |
uint16 modifiers; |
| 287 |
|
| 288 |
fp = xkeymap_open(mapname); |
| 289 |
if (fp == NULL) |
| 290 |
{ |
| 291 |
error("Failed to open keymap %s\n", mapname); |
| 292 |
return False; |
| 293 |
} |
| 294 |
|
| 295 |
/* FIXME: More tolerant on white space */ |
| 296 |
while (fgets(line, sizeof(line), fp) != NULL) |
| 297 |
{ |
| 298 |
line_num++; |
| 299 |
|
| 300 |
/* Replace the \n with \0 */ |
| 301 |
p = strchr(line, '\n'); |
| 302 |
if (p != NULL) |
| 303 |
*p = 0; |
| 304 |
|
| 305 |
line_length = strlen(line); |
| 306 |
|
| 307 |
/* Completely empty line */ |
| 308 |
if (strspn(line, " \t\n\r\f\v") == line_length) |
| 309 |
{ |
| 310 |
continue; |
| 311 |
} |
| 312 |
|
| 313 |
/* Include */ |
| 314 |
if (strncmp(line, "include ", 8) == 0) |
| 315 |
{ |
| 316 |
if (!xkeymap_read(line + 8)) |
| 317 |
return False; |
| 318 |
continue; |
| 319 |
} |
| 320 |
|
| 321 |
/* map */ |
| 322 |
if (strncmp(line, "map ", 4) == 0) |
| 323 |
{ |
| 324 |
g_keylayout = strtol(line + 4, NULL, 16); |
| 325 |
DEBUG_KBD(("Keylayout 0x%x\n", g_keylayout)); |
| 326 |
continue; |
| 327 |
} |
| 328 |
|
| 329 |
/* compose */ |
| 330 |
if (strncmp(line, "enable_compose", 15) == 0) |
| 331 |
{ |
| 332 |
DEBUG_KBD(("Enabling compose handling\n")); |
| 333 |
g_enable_compose = True; |
| 334 |
continue; |
| 335 |
} |
| 336 |
|
| 337 |
/* sequence */ |
| 338 |
if (strncmp(line, "sequence", 8) == 0) |
| 339 |
{ |
| 340 |
add_sequence(line + 8, mapname); |
| 341 |
continue; |
| 342 |
} |
| 343 |
|
| 344 |
/* Comment */ |
| 345 |
if (line[0] == '#') |
| 346 |
{ |
| 347 |
continue; |
| 348 |
} |
| 349 |
|
| 350 |
/* Normal line */ |
| 351 |
keyname = line; |
| 352 |
p = strchr(line, ' '); |
| 353 |
if (p == NULL) |
| 354 |
{ |
| 355 |
error("Bad line %d in keymap %s\n", line_num, mapname); |
| 356 |
continue; |
| 357 |
} |
| 358 |
else |
| 359 |
{ |
| 360 |
*p = 0; |
| 361 |
} |
| 362 |
|
| 363 |
/* scancode */ |
| 364 |
p++; |
| 365 |
scancode = strtol(p, &line_rest, 16); |
| 366 |
|
| 367 |
/* flags */ |
| 368 |
/* FIXME: Should allow case-insensitive flag names. |
| 369 |
Fix by using lex+yacc... */ |
| 370 |
modifiers = 0; |
| 371 |
if (strstr(line_rest, "altgr")) |
| 372 |
{ |
| 373 |
MASK_ADD_BITS(modifiers, MapAltGrMask); |
| 374 |
} |
| 375 |
|
| 376 |
if (strstr(line_rest, "shift")) |
| 377 |
{ |
| 378 |
MASK_ADD_BITS(modifiers, MapLeftShiftMask); |
| 379 |
} |
| 380 |
|
| 381 |
if (strstr(line_rest, "numlock")) |
| 382 |
{ |
| 383 |
MASK_ADD_BITS(modifiers, MapNumLockMask); |
| 384 |
} |
| 385 |
|
| 386 |
if (strstr(line_rest, "localstate")) |
| 387 |
{ |
| 388 |
MASK_ADD_BITS(modifiers, MapLocalStateMask); |
| 389 |
} |
| 390 |
|
| 391 |
if (strstr(line_rest, "inhibit")) |
| 392 |
{ |
| 393 |
MASK_ADD_BITS(modifiers, MapInhibitMask); |
| 394 |
} |
| 395 |
|
| 396 |
add_to_keymap(keyname, scancode, modifiers, mapname); |
| 397 |
|
| 398 |
if (strstr(line_rest, "addupper")) |
| 399 |
{ |
| 400 |
/* Automatically add uppercase key, with same modifiers |
| 401 |
plus shift */ |
| 402 |
for (p = keyname; *p; p++) |
| 403 |
*p = toupper((int) *p); |
| 404 |
MASK_ADD_BITS(modifiers, MapLeftShiftMask); |
| 405 |
add_to_keymap(keyname, scancode, modifiers, mapname); |
| 406 |
} |
| 407 |
} |
| 408 |
|
| 409 |
fclose(fp); |
| 410 |
return True; |
| 411 |
} |
| 412 |
|
| 413 |
|
| 414 |
/* Before connecting and creating UI */ |
| 415 |
void |
| 416 |
xkeymap_init(void) |
| 417 |
{ |
| 418 |
unsigned int max_keycode; |
| 419 |
|
| 420 |
if (strcmp(keymapname, "none")) |
| 421 |
{ |
| 422 |
if (xkeymap_read(keymapname)) |
| 423 |
keymap_loaded = True; |
| 424 |
} |
| 425 |
|
| 426 |
XDisplayKeycodes(g_display, &min_keycode, (int *) &max_keycode); |
| 427 |
} |
| 428 |
|
| 429 |
static void |
| 430 |
send_winkey(uint32 ev_time, BOOL pressed, BOOL leftkey) |
| 431 |
{ |
| 432 |
uint8 winkey; |
| 433 |
|
| 434 |
if (leftkey) |
| 435 |
winkey = SCANCODE_CHAR_LWIN; |
| 436 |
else |
| 437 |
winkey = SCANCODE_CHAR_RWIN; |
| 438 |
|
| 439 |
if (pressed) |
| 440 |
{ |
| 441 |
if (g_use_rdp5) |
| 442 |
{ |
| 443 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, winkey); |
| 444 |
} |
| 445 |
else |
| 446 |
{ |
| 447 |
/* RDP4 doesn't support winkey. Fake with Ctrl-Esc */ |
| 448 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_LCTRL); |
| 449 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_ESC); |
| 450 |
} |
| 451 |
} |
| 452 |
else |
| 453 |
{ |
| 454 |
/* key released */ |
| 455 |
if (g_use_rdp5) |
| 456 |
{ |
| 457 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, winkey); |
| 458 |
} |
| 459 |
else |
| 460 |
{ |
| 461 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_ESC); |
| 462 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LCTRL); |
| 463 |
} |
| 464 |
} |
| 465 |
} |
| 466 |
|
| 467 |
static void |
| 468 |
reset_winkey(uint32 ev_time) |
| 469 |
{ |
| 470 |
if (g_use_rdp5) |
| 471 |
{ |
| 472 |
/* For some reason, it seems to suffice to release |
| 473 |
*either* the left or right winkey. */ |
| 474 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LWIN); |
| 475 |
} |
| 476 |
} |
| 477 |
|
| 478 |
/* Handle special key combinations */ |
| 479 |
BOOL |
| 480 |
handle_special_keys(uint32 keysym, unsigned int state, uint32 ev_time, BOOL pressed) |
| 481 |
{ |
| 482 |
switch (keysym) |
| 483 |
{ |
| 484 |
case XK_Return: |
| 485 |
if ((get_key_state(state, XK_Alt_L) || get_key_state(state, XK_Alt_R)) |
| 486 |
&& (get_key_state(state, XK_Control_L) |
| 487 |
|| get_key_state(state, XK_Control_R))) |
| 488 |
{ |
| 489 |
/* Ctrl-Alt-Enter: toggle full screen */ |
| 490 |
if (pressed) |
| 491 |
xwin_toggle_fullscreen(); |
| 492 |
return True; |
| 493 |
} |
| 494 |
break; |
| 495 |
|
| 496 |
case XK_Break: |
| 497 |
/* Send Break sequence E0 46 E0 C6 */ |
| 498 |
if (pressed) |
| 499 |
{ |
| 500 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, |
| 501 |
(SCANCODE_EXTENDED | 0x46)); |
| 502 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, |
| 503 |
(SCANCODE_EXTENDED | 0xc6)); |
| 504 |
} |
| 505 |
/* No release sequence */ |
| 506 |
return True; |
| 507 |
break; |
| 508 |
|
| 509 |
case XK_Pause: |
| 510 |
/* According to MS Keyboard Scan Code |
| 511 |
Specification, pressing Pause should result |
| 512 |
in E1 1D 45 E1 9D C5. I'm not exactly sure |
| 513 |
of how this is supposed to be sent via |
| 514 |
RDP. The code below seems to work, but with |
| 515 |
the side effect that Left Ctrl stays |
| 516 |
down. Therefore, we release it when Pause |
| 517 |
is released. */ |
| 518 |
if (pressed) |
| 519 |
{ |
| 520 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0xe1, 0); |
| 521 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x1d, 0); |
| 522 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x45, 0); |
| 523 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0xe1, 0); |
| 524 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x9d, 0); |
| 525 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0xc5, 0); |
| 526 |
} |
| 527 |
else |
| 528 |
{ |
| 529 |
/* Release Left Ctrl */ |
| 530 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYRELEASE, |
| 531 |
0x1d, 0); |
| 532 |
} |
| 533 |
return True; |
| 534 |
break; |
| 535 |
|
| 536 |
case XK_Meta_L: /* Windows keys */ |
| 537 |
case XK_Super_L: |
| 538 |
case XK_Hyper_L: |
| 539 |
send_winkey(ev_time, pressed, True); |
| 540 |
return True; |
| 541 |
break; |
| 542 |
|
| 543 |
case XK_Meta_R: |
| 544 |
case XK_Super_R: |
| 545 |
case XK_Hyper_R: |
| 546 |
send_winkey(ev_time, pressed, False); |
| 547 |
return True; |
| 548 |
break; |
| 549 |
|
| 550 |
case XK_space: |
| 551 |
/* Prevent access to the Windows system menu in single app mode */ |
| 552 |
if (g_win_button_size |
| 553 |
&& (get_key_state(state, XK_Alt_L) || get_key_state(state, XK_Alt_R))) |
| 554 |
return True; |
| 555 |
break; |
| 556 |
|
| 557 |
case XK_Num_Lock: |
| 558 |
/* Synchronize on key release */ |
| 559 |
if (g_numlock_sync && !pressed) |
| 560 |
rdp_send_input(0, RDP_INPUT_SYNCHRONIZE, 0, |
| 561 |
ui_get_numlock_state(read_keyboard_state()), 0); |
| 562 |
|
| 563 |
/* Inhibit */ |
| 564 |
return True; |
| 565 |
break; |
| 566 |
|
| 567 |
} |
| 568 |
return False; |
| 569 |
} |
| 570 |
|
| 571 |
|
| 572 |
key_translation |
| 573 |
xkeymap_translate_key(uint32 keysym, unsigned int keycode, unsigned int state) |
| 574 |
{ |
| 575 |
key_translation tr = { 0, 0, 0, 0 }; |
| 576 |
key_translation *ptr; |
| 577 |
|
| 578 |
ptr = keymap[keysym & KEYMAP_MASK]; |
| 579 |
if (ptr) |
| 580 |
{ |
| 581 |
tr = *ptr; |
| 582 |
if (tr.seq_keysym == 0) /* Normal scancode translation */ |
| 583 |
{ |
| 584 |
if (tr.modifiers & MapInhibitMask) |
| 585 |
{ |
| 586 |
DEBUG_KBD(("Inhibiting key\n")); |
| 587 |
tr.scancode = 0; |
| 588 |
return tr; |
| 589 |
} |
| 590 |
|
| 591 |
if (tr.modifiers & MapLocalStateMask) |
| 592 |
{ |
| 593 |
/* The modifiers to send for this key should be obtained |
| 594 |
from the local state. Currently, only shift is implemented. */ |
| 595 |
if (state & ShiftMask) |
| 596 |
{ |
| 597 |
tr.modifiers = MapLeftShiftMask; |
| 598 |
} |
| 599 |
} |
| 600 |
|
| 601 |
if ((tr.modifiers & MapLeftShiftMask) |
| 602 |
&& ((remote_modifier_state & MapLeftCtrlMask) |
| 603 |
|| (remote_modifier_state & MapRightCtrlMask)) |
| 604 |
&& get_key_state(state, XK_Caps_Lock)) |
| 605 |
{ |
| 606 |
DEBUG_KBD(("CapsLock + Ctrl pressed, releasing LeftShift\n")); |
| 607 |
tr.modifiers ^= MapLeftShiftMask; |
| 608 |
} |
| 609 |
|
| 610 |
DEBUG_KBD(("Found scancode translation, scancode=0x%x, modifiers=0x%x\n", |
| 611 |
tr.scancode, tr.modifiers)); |
| 612 |
} |
| 613 |
} |
| 614 |
else |
| 615 |
{ |
| 616 |
if (keymap_loaded) |
| 617 |
warning("No translation for (keysym 0x%lx, %s)\n", keysym, |
| 618 |
get_ksname(keysym)); |
| 619 |
|
| 620 |
/* not in keymap, try to interpret the raw scancode */ |
| 621 |
if (((int) keycode >= min_keycode) && (keycode <= 0x60)) |
| 622 |
{ |
| 623 |
tr.scancode = keycode - min_keycode; |
| 624 |
|
| 625 |
/* The modifiers to send for this key should be |
| 626 |
obtained from the local state. Currently, only |
| 627 |
shift is implemented. */ |
| 628 |
if (state & ShiftMask) |
| 629 |
{ |
| 630 |
tr.modifiers = MapLeftShiftMask; |
| 631 |
} |
| 632 |
|
| 633 |
DEBUG_KBD(("Sending guessed scancode 0x%x\n", tr.scancode)); |
| 634 |
} |
| 635 |
else |
| 636 |
{ |
| 637 |
DEBUG_KBD(("No good guess for keycode 0x%x found\n", keycode)); |
| 638 |
} |
| 639 |
} |
| 640 |
|
| 641 |
return tr; |
| 642 |
} |
| 643 |
|
| 644 |
void |
| 645 |
xkeymap_send_keys(uint32 keysym, unsigned int keycode, unsigned int state, uint32 ev_time, |
| 646 |
BOOL pressed) |
| 647 |
{ |
| 648 |
key_translation tr, *ptr; |
| 649 |
tr = xkeymap_translate_key(keysym, keycode, state); |
| 650 |
|
| 651 |
if (tr.seq_keysym == 0) |
| 652 |
{ |
| 653 |
/* Scancode translation */ |
| 654 |
if (tr.scancode == 0) |
| 655 |
return; |
| 656 |
|
| 657 |
if (pressed) |
| 658 |
{ |
| 659 |
save_remote_modifiers(tr.scancode); |
| 660 |
ensure_remote_modifiers(ev_time, tr); |
| 661 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, tr.scancode); |
| 662 |
restore_remote_modifiers(ev_time, tr.scancode); |
| 663 |
} |
| 664 |
else |
| 665 |
{ |
| 666 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, tr.scancode); |
| 667 |
} |
| 668 |
return; |
| 669 |
} |
| 670 |
|
| 671 |
/* Sequence, only on key down */ |
| 672 |
if (pressed) |
| 673 |
{ |
| 674 |
ptr = &tr; |
| 675 |
do |
| 676 |
{ |
| 677 |
DEBUG_KBD(("Handling sequence element, keysym=0x%x\n", |
| 678 |
(unsigned int) ptr->seq_keysym)); |
| 679 |
xkeymap_send_keys(ptr->seq_keysym, keycode, state, ev_time, True); |
| 680 |
xkeymap_send_keys(ptr->seq_keysym, keycode, state, ev_time, False); |
| 681 |
ptr = ptr->next; |
| 682 |
} |
| 683 |
while (ptr); |
| 684 |
} |
| 685 |
} |
| 686 |
|
| 687 |
uint16 |
| 688 |
xkeymap_translate_button(unsigned int button) |
| 689 |
{ |
| 690 |
switch (button) |
| 691 |
{ |
| 692 |
case Button1: /* left */ |
| 693 |
return MOUSE_FLAG_BUTTON1; |
| 694 |
case Button2: /* middle */ |
| 695 |
return MOUSE_FLAG_BUTTON3; |
| 696 |
case Button3: /* right */ |
| 697 |
return MOUSE_FLAG_BUTTON2; |
| 698 |
case Button4: /* wheel up */ |
| 699 |
return MOUSE_FLAG_BUTTON4; |
| 700 |
case Button5: /* wheel down */ |
| 701 |
return MOUSE_FLAG_BUTTON5; |
| 702 |
} |
| 703 |
|
| 704 |
return 0; |
| 705 |
} |
| 706 |
|
| 707 |
char * |
| 708 |
get_ksname(uint32 keysym) |
| 709 |
{ |
| 710 |
char *ksname = NULL; |
| 711 |
|
| 712 |
if (keysym == NoSymbol) |
| 713 |
ksname = "NoSymbol"; |
| 714 |
else if (!(ksname = XKeysymToString(keysym))) |
| 715 |
ksname = "(no name)"; |
| 716 |
|
| 717 |
return ksname; |
| 718 |
} |
| 719 |
|
| 720 |
static BOOL |
| 721 |
is_modifier(uint8 scancode) |
| 722 |
{ |
| 723 |
switch (scancode) |
| 724 |
{ |
| 725 |
case SCANCODE_CHAR_LSHIFT: |
| 726 |
case SCANCODE_CHAR_RSHIFT: |
| 727 |
case SCANCODE_CHAR_LCTRL: |
| 728 |
case SCANCODE_CHAR_RCTRL: |
| 729 |
case SCANCODE_CHAR_LALT: |
| 730 |
case SCANCODE_CHAR_RALT: |
| 731 |
case SCANCODE_CHAR_LWIN: |
| 732 |
case SCANCODE_CHAR_RWIN: |
| 733 |
case SCANCODE_CHAR_NUMLOCK: |
| 734 |
return True; |
| 735 |
default: |
| 736 |
break; |
| 737 |
} |
| 738 |
return False; |
| 739 |
} |
| 740 |
|
| 741 |
void |
| 742 |
save_remote_modifiers(uint8 scancode) |
| 743 |
{ |
| 744 |
if (is_modifier(scancode)) |
| 745 |
return; |
| 746 |
|
| 747 |
saved_remote_modifier_state = remote_modifier_state; |
| 748 |
} |
| 749 |
|
| 750 |
void |
| 751 |
restore_remote_modifiers(uint32 ev_time, uint8 scancode) |
| 752 |
{ |
| 753 |
key_translation dummy; |
| 754 |
|
| 755 |
if (is_modifier(scancode)) |
| 756 |
return; |
| 757 |
|
| 758 |
dummy.scancode = 0; |
| 759 |
dummy.modifiers = saved_remote_modifier_state; |
| 760 |
ensure_remote_modifiers(ev_time, dummy); |
| 761 |
} |
| 762 |
|
| 763 |
void |
| 764 |
ensure_remote_modifiers(uint32 ev_time, key_translation tr) |
| 765 |
{ |
| 766 |
/* If this key is a modifier, do nothing */ |
| 767 |
if (is_modifier(tr.scancode)) |
| 768 |
return; |
| 769 |
|
| 770 |
if (!g_numlock_sync) |
| 771 |
{ |
| 772 |
/* NumLock */ |
| 773 |
if (MASK_HAS_BITS(tr.modifiers, MapNumLockMask) |
| 774 |
!= MASK_HAS_BITS(remote_modifier_state, MapNumLockMask)) |
| 775 |
{ |
| 776 |
/* The remote modifier state is not correct */ |
| 777 |
uint16 new_remote_state; |
| 778 |
|
| 779 |
if (MASK_HAS_BITS(tr.modifiers, MapNumLockMask)) |
| 780 |
{ |
| 781 |
DEBUG_KBD(("Remote NumLock state is incorrect, activating NumLock.\n")); |
| 782 |
new_remote_state = KBD_FLAG_NUMLOCK; |
| 783 |
remote_modifier_state = MapNumLockMask; |
| 784 |
} |
| 785 |
else |
| 786 |
{ |
| 787 |
DEBUG_KBD(("Remote NumLock state is incorrect, deactivating NumLock.\n")); |
| 788 |
new_remote_state = 0; |
| 789 |
remote_modifier_state = 0; |
| 790 |
} |
| 791 |
|
| 792 |
rdp_send_input(0, RDP_INPUT_SYNCHRONIZE, 0, new_remote_state, 0); |
| 793 |
} |
| 794 |
} |
| 795 |
|
| 796 |
|
| 797 |
/* Shift. Left shift and right shift are treated as equal; either is fine. */ |
| 798 |
if (MASK_HAS_BITS(tr.modifiers, MapShiftMask) |
| 799 |
!= MASK_HAS_BITS(remote_modifier_state, MapShiftMask)) |
| 800 |
{ |
| 801 |
/* The remote modifier state is not correct */ |
| 802 |
if (MASK_HAS_BITS(tr.modifiers, MapLeftShiftMask)) |
| 803 |
{ |
| 804 |
/* Needs left shift. Send down. */ |
| 805 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_LSHIFT); |
| 806 |
} |
| 807 |
else if (MASK_HAS_BITS(tr.modifiers, MapRightShiftMask)) |
| 808 |
{ |
| 809 |
/* Needs right shift. Send down. */ |
| 810 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_RSHIFT); |
| 811 |
} |
| 812 |
else |
| 813 |
{ |
| 814 |
/* Should not use this modifier. Send up for shift currently pressed. */ |
| 815 |
if (MASK_HAS_BITS(remote_modifier_state, MapLeftShiftMask)) |
| 816 |
/* Left shift is down */ |
| 817 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LSHIFT); |
| 818 |
else |
| 819 |
/* Right shift is down */ |
| 820 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RSHIFT); |
| 821 |
} |
| 822 |
} |
| 823 |
|
| 824 |
/* AltGr */ |
| 825 |
if (MASK_HAS_BITS(tr.modifiers, MapAltGrMask) |
| 826 |
!= MASK_HAS_BITS(remote_modifier_state, MapAltGrMask)) |
| 827 |
{ |
| 828 |
/* The remote modifier state is not correct */ |
| 829 |
if (MASK_HAS_BITS(tr.modifiers, MapAltGrMask)) |
| 830 |
{ |
| 831 |
/* Needs this modifier. Send down. */ |
| 832 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_RALT); |
| 833 |
} |
| 834 |
else |
| 835 |
{ |
| 836 |
/* Should not use this modifier. Send up. */ |
| 837 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RALT); |
| 838 |
} |
| 839 |
} |
| 840 |
|
| 841 |
|
| 842 |
} |
| 843 |
|
| 844 |
|
| 845 |
unsigned int |
| 846 |
read_keyboard_state() |
| 847 |
{ |
| 848 |
#ifdef RDP2VNC |
| 849 |
return 0; |
| 850 |
#else |
| 851 |
unsigned int state; |
| 852 |
Window wdummy; |
| 853 |
int dummy; |
| 854 |
|
| 855 |
XQueryPointer(g_display, g_wnd, &wdummy, &wdummy, &dummy, &dummy, &dummy, &dummy, &state); |
| 856 |
return state; |
| 857 |
#endif |
| 858 |
} |
| 859 |
|
| 860 |
|
| 861 |
uint16 |
| 862 |
ui_get_numlock_state(unsigned int state) |
| 863 |
{ |
| 864 |
uint16 numlock_state = 0; |
| 865 |
|
| 866 |
if (get_key_state(state, XK_Num_Lock)) |
| 867 |
numlock_state = KBD_FLAG_NUMLOCK; |
| 868 |
|
| 869 |
return numlock_state; |
| 870 |
} |
| 871 |
|
| 872 |
|
| 873 |
void |
| 874 |
reset_modifier_keys() |
| 875 |
{ |
| 876 |
unsigned int state = read_keyboard_state(); |
| 877 |
|
| 878 |
/* reset keys */ |
| 879 |
uint32 ev_time; |
| 880 |
ev_time = time(NULL); |
| 881 |
|
| 882 |
if (MASK_HAS_BITS(remote_modifier_state, MapLeftShiftMask) |
| 883 |
&& !get_key_state(state, XK_Shift_L)) |
| 884 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LSHIFT); |
| 885 |
|
| 886 |
if (MASK_HAS_BITS(remote_modifier_state, MapRightShiftMask) |
| 887 |
&& !get_key_state(state, XK_Shift_R)) |
| 888 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RSHIFT); |
| 889 |
|
| 890 |
if (MASK_HAS_BITS(remote_modifier_state, MapLeftCtrlMask) |
| 891 |
&& !get_key_state(state, XK_Control_L)) |
| 892 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LCTRL); |
| 893 |
|
| 894 |
if (MASK_HAS_BITS(remote_modifier_state, MapRightCtrlMask) |
| 895 |
&& !get_key_state(state, XK_Control_R)) |
| 896 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RCTRL); |
| 897 |
|
| 898 |
if (MASK_HAS_BITS(remote_modifier_state, MapLeftAltMask) && !get_key_state(state, XK_Alt_L)) |
| 899 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LALT); |
| 900 |
|
| 901 |
if (MASK_HAS_BITS(remote_modifier_state, MapRightAltMask) && |
| 902 |
!get_key_state(state, XK_Alt_R) && !get_key_state(state, XK_Mode_switch) |
| 903 |
&& !get_key_state(state, XK_ISO_Level3_Shift)) |
| 904 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RALT); |
| 905 |
|
| 906 |
reset_winkey(ev_time); |
| 907 |
|
| 908 |
if (g_numlock_sync) |
| 909 |
rdp_send_input(ev_time, RDP_INPUT_SYNCHRONIZE, 0, ui_get_numlock_state(state), 0); |
| 910 |
} |
| 911 |
|
| 912 |
|
| 913 |
static void |
| 914 |
update_modifier_state(uint8 scancode, BOOL pressed) |
| 915 |
{ |
| 916 |
#ifdef WITH_DEBUG_KBD |
| 917 |
uint16 old_modifier_state; |
| 918 |
|
| 919 |
old_modifier_state = remote_modifier_state; |
| 920 |
#endif |
| 921 |
|
| 922 |
switch (scancode) |
| 923 |
{ |
| 924 |
case SCANCODE_CHAR_LSHIFT: |
| 925 |
MASK_CHANGE_BIT(remote_modifier_state, MapLeftShiftMask, pressed); |
| 926 |
break; |
| 927 |
case SCANCODE_CHAR_RSHIFT: |
| 928 |
MASK_CHANGE_BIT(remote_modifier_state, MapRightShiftMask, pressed); |
| 929 |
break; |
| 930 |
case SCANCODE_CHAR_LCTRL: |
| 931 |
MASK_CHANGE_BIT(remote_modifier_state, MapLeftCtrlMask, pressed); |
| 932 |
break; |
| 933 |
case SCANCODE_CHAR_RCTRL: |
| 934 |
MASK_CHANGE_BIT(remote_modifier_state, MapRightCtrlMask, pressed); |
| 935 |
break; |
| 936 |
case SCANCODE_CHAR_LALT: |
| 937 |
MASK_CHANGE_BIT(remote_modifier_state, MapLeftAltMask, pressed); |
| 938 |
break; |
| 939 |
case SCANCODE_CHAR_RALT: |
| 940 |
MASK_CHANGE_BIT(remote_modifier_state, MapRightAltMask, pressed); |
| 941 |
break; |
| 942 |
case SCANCODE_CHAR_LWIN: |
| 943 |
MASK_CHANGE_BIT(remote_modifier_state, MapLeftWinMask, pressed); |
| 944 |
break; |
| 945 |
case SCANCODE_CHAR_RWIN: |
| 946 |
MASK_CHANGE_BIT(remote_modifier_state, MapRightWinMask, pressed); |
| 947 |
break; |
| 948 |
case SCANCODE_CHAR_NUMLOCK: |
| 949 |
/* KeyReleases for NumLocks are sent immediately. Toggle the |
| 950 |
modifier state only on Keypress */ |
| 951 |
if (pressed && !g_numlock_sync) |
| 952 |
{ |
| 953 |
BOOL newNumLockState; |
| 954 |
newNumLockState = |
| 955 |
(MASK_HAS_BITS |
| 956 |
(remote_modifier_state, MapNumLockMask) == False); |
| 957 |
MASK_CHANGE_BIT(remote_modifier_state, |
| 958 |
MapNumLockMask, newNumLockState); |
| 959 |
} |
| 960 |
} |
| 961 |
|
| 962 |
#ifdef WITH_DEBUG_KBD |
| 963 |
if (old_modifier_state != remote_modifier_state) |
| 964 |
{ |
| 965 |
DEBUG_KBD(("Before updating modifier_state:0x%x, pressed=0x%x\n", |
| 966 |
old_modifier_state, pressed)); |
| 967 |
DEBUG_KBD(("After updating modifier_state:0x%x\n", remote_modifier_state)); |
| 968 |
} |
| 969 |
#endif |
| 970 |
|
| 971 |
} |
| 972 |
|
| 973 |
/* Send keyboard input */ |
| 974 |
void |
| 975 |
rdp_send_scancode(uint32 time, uint16 flags, uint8 scancode) |
| 976 |
{ |
| 977 |
update_modifier_state(scancode, !(flags & RDP_KEYRELEASE)); |
| 978 |
|
| 979 |
if (scancode & SCANCODE_EXTENDED) |
| 980 |
{ |
| 981 |
DEBUG_KBD(("Sending extended scancode=0x%x, flags=0x%x\n", |
| 982 |
scancode & ~SCANCODE_EXTENDED, flags)); |
| 983 |
rdp_send_input(time, RDP_INPUT_SCANCODE, flags | KBD_FLAG_EXT, |
| 984 |
scancode & ~SCANCODE_EXTENDED, 0); |
| 985 |
} |
| 986 |
else |
| 987 |
{ |
| 988 |
DEBUG_KBD(("Sending scancode=0x%x, flags=0x%x\n", scancode, flags)); |
| 989 |
rdp_send_input(time, RDP_INPUT_SCANCODE, flags, scancode, 0); |
| 990 |
} |
| 991 |
} |
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